CLEMSON CHEMISTRY 1020 EXAM 1 QUESTIONS WITH 100% CORRECT ANSWERS

CLEMSONCHEMISTRY1020EXAM1 x x x x




QUESTIONSWITHCORRECTANSWERS2025 x x x x




Enthalpy(H)isnegative-CORRECTANSWER-exothermic-- flows x x x x x x x x




from the system into the surroundings
x x x x x x




Enthalpy(H)ispositive-CORRECTANSWER-endothermic-- x x x x x x x




flows from the surroundings into the system
x x x x x x x




Entropy(S)isnegative-CORRECTANSWER-randomnessofthesystemdecreases
x x x x x x x x x x x




Entropy(S)ispositive-CORRECTANSWER-randomnessofthesystemincreases
x x x x x x x x x x x




Entropy: state function or nah? - CORRECT ANSWER - entropyisa x x x x x x x x x x x




statefunction(ChangeinS=S(final)-S(initial)
x x x x x x




Temperature(entropy)-CORRECT ANSWER- x x x x x




astemperatureincreasestherandommolecularmotionincreases--
x x x x x x x x




>kineticenergyofmoleculesincrease--.Thereforeentropyincreases
x x x x x x x x x




1stlawofThermodyamics-CORRECTANSWER--
x x x x x x x




inanyprocess,spontaneousornonspontaneous,thetotalenergyofasystem&itssurroundings is
x x x x x x x x x x x x x x x x




constant
x




2ndlawofThermodynamics-CORRECTANSWER--
x x x x x x x




theprinciplethatthetotalentropyoftheuniverseincreasesinanyspontaneousprocess
x x x x x x x x x x x x x




-changesuniverse=changessys+changessurr



Changsuniverse(signs)-CORRECTANSWER-S>0E=spontaneous S<0 = x x x x x x x x




x non spontaneous x